Meteo-Lysimeter

Additionally a weather station is equipped with a pyrradiometer and sensors for relative humidity and wind speed at 2 m, and air temperature sensors at 5 cm, 50 cm and 2 m.

The cylindrical stainless steel
monolithic lysimeter has a surface of
1 square meter and a monolith depth of 1 meter.
Due to the high resolution weighing system input water fractions are measured with a resolution of
0.01 mm, including dew, rime and small rates of evapotranspiration.
Drainage system and drainage water measurement as described at HYDROLY
The soil temperature is measured in depths of 5 cm, 10 cm and 20 cm. The soil water content is measured at
10 cm.

Typical Applications

• Measurement of ET, ETo and precipitation.
• Measurement of soil water content and temperature in coherence with climatic data.

Advantages

• This lysimeter design allows the determination of water balance and energy balance
• Measurment of the soil water parameters and their interfaces to atmosphere and aquifer

Limitations

• Snow needs to be cut along the gap before icing to maintain the weighing capability
• Not for agri-cultivation applications

Technical Information

Included in Delivery

• Complete lysimeter as described in the text with Sensors and leachate components
• Service well with enclosed
  data logger DT80
• Model for ET, ETo and
  groundwater recharge
• Lysimeter like HYDROLLY plus an additional Meteostation:
  rF sensor, calibrated at 97% rF
  Th2 temperature sensors at: -20cm, -10cm, -5cm, +5cm, +50cm, +200 cm
  BILANZ: Pyrradiometer
  RM826: Rain gage
  4 x RS200: totalizers
  A100R: windspeed sensor
  M2: meteomast including sensor mounts